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Finding the Fourth Proportional to 158,029.60, 236,929.20 and 64,487.20

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Solution

The fourth proportional to 158,029.60, 236,929.20 and 64,487.20 is: 96,683.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,029.60 : 236,929.20 = 64,487.20 : x
  2. Step 2: Convert to fraction form
    158,029.60/236,929.20 = 64,487.20/x
  3. Step 3: Cross multiply
    158,029.60x = 236,929.20 × 64,487.20
  4. Step 4: Simplify right side
    158,029.60x = 15,278,900,706.24
  5. Step 5: Solve for x
    x = 15,278,900,706.24/158,029.60
  6. Step 6: Final answer
    x = 96,683.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.